An electron-hole separation mechanism caused by the pseudo-gap formed at the interfacial Co-N bond between cobalt porphyrin metal organic framework and boron-doped g-C3N4 for boosting photocatalytic H2 production

Near-Infrared-Induced Photothermal Enhanced Photocatalytic H2 Production for 3D/2D Heterojunctions of Snowflake-like CuS/g-C3N4 Nanosheets

“…In order to obtain high efficiency of solar energy conversion, the semiconductor photocatalysts need to satisfy several requirements, including high light harvesting, fast charge collection and separation, and efficient surface reaction kinetics. , Among different non-noble metal photocatalysts, graphite carbon nitride (g-C 3 N 4 ) has the features of being easily available, inexpensive, and chemically durable. Furthermore, it also possesses a narrow bandgap (around 2.7 eV) to excite charge carriers efficiently and obtain the visible-light response and suitable conduction band (CB) to produce H 2 , which makes it receive much concern in the application of PCHG. , However, the limited light harvesting and inherent fast recombination of photogenerated carriers for pure g-C 3 N 4 hinder its H 2 generation rate . Although many strategies such as defect control, , nano-structure design, , heterojunction construction, − and cocatalyst loading , are applied, it is necessary to further improve the PCHG efficiency via expanding the light response range and enhancing the separation and transfer rates of carriers.…”

“…Furthermore, it also possesses a narrow bandgap (around 2.7 eV) to excite charge carriers efficiently and obtain the visible-light response and suitable conduction band (CB) to produce H 2 , which makes it receive much concern in the application of PCHG. 8,9 However, the limited light harvesting and inherent fast recombination of photogenerated carriers for pure g-C 3 N 4 hinder its H 2 generation rate. 10 Although many strategies such as defect control, 11,12 nano-structure design, 13,14 heterojunction construction, 15−17 and cocatalyst loading 18,19 are applied, it is necessary to further improve the PCHG efficiency via expanding the light response range and enhancing the separation and transfer rates of carriers.…”

In Situ Characterization Techniques Applied in Photocatalysis: A Review

“…Chunxia Mu, Chongyang Lv, Xiangchao Meng,* Jianhua Sun, Zhangfa Tong, and Kelei Huang* DOI: 10.1002/admi.202201842 splitting for hydrogen evolution, CO 2 reduction, N 2 fixation, H 2 O 2 production, heavy metal removal, and organic synthesis. [2][3][4][5][6] However, most photo catalytic applications still stay on the lab-scale due to their poor light utilization and low efficiency. [7] As shown in Figure 1, heterogeneous photocatalysis is a complex process with a multitemporal spatial scale involving photons activation, charge carriers' separation and transfer, reactants adsorption and desorption, and redox reaction at the surface of solid photo catalyst.…”

A novel graphdiyne (CnH2n−2) synthesis strategy: design and application of an organic/inorganic conjugated system for photocatalytic hydrogen production

“…7,8 The technology of using solar energy to drive the decomposition of water to produce hydrogen is expected to be the main energy production method in the future, [9][10][11][12] which follows the concept of green and sustainable development from production to application and is the inevitable trend of human development in the future. 13,14 Graphdiyne (GDY) is a new type of carbon isotope, and its unique structure and properties lead us to determine that it has a wide range of application prospects. 15 The theoretical chemist Baughman was the first to suggest that graphdiyne structures formed from sp 2 and sp hybridized carbon could be stabilized, which inspired numerous scientific researchers.…”

“…7,8 The technology of using solar energy to drive the decomposition of water to produce hydrogen is expected to be the main energy production method in the future, 9–12 which follows the concept of green and sustainable development from production to application and is the inevitable trend of human development in the future. 13,14…”